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Old 09-23-2016, 12:04 PM   #1
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1986 31' Sovereign
Jacksonville , Florida
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Black water tank gate valve leaking

We have a 1986 31' Sovereign with center bath. Can anyone tell me what kind of gate valve I should purchase before I pull the old one?
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Old 09-23-2016, 12:49 PM   #2
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The original was a Thetford, though it could have been changed over the years. I suggest looking at it before ordering a new one. You may need a tank adapter too.

http://odmrv.com/catalog/index.php?m...roducts_id=411

or

http://odmrv.com/catalog/index.php?m...roducts_id=412
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2014 Silverado 1500 Crew Cab 5.3L maximum trailering package (yes, I'm towing the 34')
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Old 09-23-2016, 03:45 PM   #3
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I would definitely by a new tank adapter. They crack with age. Both of mine cracked last year.
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Old 09-23-2016, 06:21 PM   #4
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What is the adapter ? Are you talking about the trailer side coupling for the waste hose?
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Old 09-23-2016, 06:43 PM   #5
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The adapter is a piece that "adapts" the valve to the tank. They're notorious for cracking and leaking. Last year, I replaced what I thought was a leaking valve and ended up being a cracked & leaking adapter. I still replaced both while I had it all torn apart.
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Old 09-23-2016, 08:33 PM   #6
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Quote:
Originally Posted by Tiger Tail View Post
What is the adapter ? Are you talking about the trailer side coupling for the waste hose?
The adapter is shown in the links in post #2, as an accessory to one of the valves.
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Old 09-24-2016, 08:50 AM   #7
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1986 31' Sovereign
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Thanks for the advice. I'm taking a small, educated gamble now. I've ordered a Thetford seal kit and new slip- in flange (adapter). If I'm wrong I'll be shipping back for a new and costlier valve assy. Vintage Trailer Supply is awesome for parts at a reasonable cost and fast to ship.
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